| http://www.w3.org/ns/prov#value | - Linear-low-density polyethylene(LLDPE) prepared by ionic polymerization of ethylene and ??-olefin exhibits mechanical properties, such as impact strength, tensile strength and resistance for environmental stress-cracking that are superior to those of low-density polyethylene(LDPE) prepared by radical polymerization, and has therefore been used widely as materials for films, blow moldings and injec
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